I was having a weird failure that I finally figured out: when
software source config runs then storage config, the 'begin_
installation' needle can match while the 'slide down from the
top' animation is still playing, and by the time os-autoinst
positions the cursor to click where the button was when the
match happened, it's moved down and we wind up clicking outside
the button area. So, wait a sec before clicking to avoid this.

Run the server_sata_multi test.